Middlings-separator



2 Sheets-'-- Sheet 1.

A. N. WOLF. Middlings Separator.

N0.'230 ,597. Patented July 27,1880.

' v INVENTOR Jha/hm W, W27- WITNESSES ATTORNEY R.PEYERS,PHOTO-UTNOGRAPHER, WASHINGTONv D C.

2 Sheets-Sheet 2.

A. N. WOLF.

. Middlings Separator. No. 230,597. Patented July 27,1880.

. WITNESSES lNVENTOR & ATTORNEY MPEIERS, PHOTD-LITMOGRAPHER, wAsmNGTnN.n C.

UNITED STATES PATENT OFFICE.

ABRAHAM N. WOLF, ALLENTOWN, PENNSYLVANIA.

MlDDLlNGS-SEPARATORf SPECIFICATION forming part of Letters Patent No.230,597, dated July 27, 1880.

Application filed January 6, 1880.

To all whom it may concern:

' Allentown, in the the county of Lehigh and State of Pennsylvania, haveinventeda new and valuable improvement in Middlings-Separators; and I dohereby declare that the followingis a full, clear, and exact descriptionof the construction and operation of the same, reference being had tothe annexed drawings, making a part of this specification, and to theletters and figures of reference marked there- Figure l of the drawingsis a representation of a longitudinal vertical central section of myimproved separator. Figs. 2 and 3 are transverse sections of the same.Fig. 4 is an end View thereof.

This invention has relation to middlingsseparators; and it consists inthe construction and novel arrangement of parts, as hereinafter shownand described.

In the accompanying drawings, the letterA designates the frame, which isusually of ordinary rectangular form, having removable sides and ends,held by buttons or other securing means. 1 v

A represents the fan-case, and B the fan shaft, havingapulley-connection, b. The fanbox is double, to accommodate a blower-fan,B, and a suction-fan, O, the former discharging into a blast-box, D, atthe lower portion of one end of the machine, Upon the fanshaft, near thesides of the frame, are the eccentrics or cams a, which engage with theends of the upper arms, 0, of the angle-levers D, said arms beingprovided with anti'friction rollers. These angle-levers D are pivoted tothe frame, the location of the journals being between the shakers, asshown. By means of upper extensions, c,'they are connected with theupper shaker, and to the lower shaker by the lower arms, 0

E designates the upper shaker, having a movable screen or cloth, 6. Theinclination of this box is slightly downward from that end of the framein which the fan is located, and is sufficient to allow the contents tobe readily moved by the motion of the shakerbox toward its dischargingend, that portion upon the screen passing over and down through angularpassages e to the shaker below, and

that portion in the box of the shaker passing out through thedischarge-spout f. Springarms D serve as hangers for the shaker-box, andto give it a quick backward movement, whereby the forward movement ofthe contents is -accelerated.

E represents the lower shaker, also hung from spring-arms D and providedwith a removable screen, 0, as shown. This shaker is inclined in theopposite direction from that of the upper shaker, to allow the contentsto gravitate toward the blower end of the machine.

The shaker-boxes are made in cross-section, somewhat angular in form,their sides being curved and shelving towardthe lower central portion,which is flat, extending longitudinally from end to end. The bottom ofthe lower shaker is provided with an under dischargetrough, f, intowhich its contents are passed through apertures g, governed by valves g.The lower shaker receives that portion of the contents of the uppershaker which passes over its screen through the angular passages e Uponthe fan-shaft is formed a worm-thread, h, which engages with agear-wheel, To, carrying an eccentrically-pivoted link, 1, which isconnected to the outer end of an arm, 6, fastened to the journal of ahorizontal blast-pipe, m, which extends through the lower shaker underits screen, and is journaled at the other end, so as to have a vibratorymotion as the gear-wheel 7c is turned by the worm h. Parallel with thisblast-pipe and on each side of it is a similar blast-pipe, m, alsojournaled at each end, the three journals of said pipes at one end ofthe machine carrying pulleys p, which engage with a belt, a, in themanner shown, thereby, when the central pipe is vibrated, giving asimilar motion to the side pipes. These pipes extend into the blast-boxD, and have openings 2 to receive the blast from the blast chamber anddischarge it through longitudinal slots or crevices 1" along their uppersurfaces, so that the blast is directed toward the under side of thelower screen, and has a lateral to'and-fro action thereon, keeping thecloth from clogging and blowing out the light fuzzy stuif, which iscarried off by the action of the suction-fan.

, L represents a shaft in the upper shaker,

having rocking bearings s and grip-leathers I, connected to said rockingbearings and to transverse slides a, moving on slotted ways 10 at eachend of the shaker under the screen. To these slides a are attachedlongitudinal cords c, which serve, when moved transversely by the meansindicated, to clear the under surface of the upper screen. One of theseslideways w is made movable, being attached to a longitudinal slide, 20,having a handle, H, so that the cords may be slackened or tightened atwill, or, by a quick pull, may be thrown upward against the under sideof the screen-cloth. The rock-shaft L has upon its journal end a pulley,p, which is operated by the belt a to give said shaft a vibratory motion.

I am aware that shakers having opposite reciprocating movements and thatoscillating blast-pipes having spaced air-exits are not new, and I donot claim such devices, broadly.

Having described this invention, What I claim, and desire to secure byLetters Patent, 1s-

1. The combination, with the case A, having at one end a blast-chamber,D, and a blower, B, discharging into said chamber, of the oscillatingpipes m, having longitudinal blast-slots under the lower screen, saidpipes extending by one end into the blast-chamber, and l'lavingz; inletsz therein, and being provided at their other ends with pulleys p, thewhipper-shaft L, its pulley p, and the endless belt a, passing over thepulleys p p, substantially as specified.

2. The combination, with the rock-shaft L, having the rocking bearings sand grip-leathers t, of the transverse slideways w, slides a, andclearing-cords 11, substantially as specified.

In testimony that I claim the above I have hereunto subscribed my namein the presence of two Witnesses.

ABRAHAM N. YVOLF.

Witnesses:

J. F. WEINSHEIMER, HENRY T. KLEGKNER.

